A:
Positive:
1 x 130322155 x 26064437 x 186174535 x 37234959 x 220885295 x 44177413 x 315552065 x 6311
Negative:
-1 x -13032215-5 x -2606443-7 x -1861745-35 x -372349-59 x -220885-295 x -44177-413 x -31555-2065 x -6311
Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 13,032,215, it is easier to work with a table - it's called factoring from the outside in.
We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.
| 1 | 13,032,215 | |
| -1 | -13,032,215 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,032,215.
Example:
1 x 13,032,215 = 13,032,215
and
-1 x -13,032,215 = 13,032,215
Notice both answers equal 13,032,215
With that explanation out of the way, let's continue. Next, we take the number 13,032,215 and divide it by 2:
13,032,215 ÷ 2 = 6,516,107.5
If the quotient is a whole number, then 2 and 6,516,107.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 13,032,215 | |
| -1 | -13,032,215 |
Now, we try dividing 13,032,215 by 3:
13,032,215 ÷ 3 = 4,344,071.6667
If the quotient is a whole number, then 3 and 4,344,071.6667 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 13,032,215 | |
| -1 | -13,032,215 |
Let's try dividing by 4:
13,032,215 ÷ 4 = 3,258,053.75
If the quotient is a whole number, then 4 and 3,258,053.75 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 13,032,215 | |
| -1 | 13,032,215 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 59 | 295 | 413 | 2,065 | 6,311 | 31,555 | 44,177 | 220,885 | 372,349 | 1,861,745 | 2,606,443 | 13,032,215 |
| -1 | -5 | -7 | -35 | -59 | -295 | -413 | -2,065 | -6,311 | -31,555 | -44,177 | -220,885 | -372,349 | -1,861,745 | -2,606,443 | -13,032,215 |
Here are some more numbers to try:
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